OOLITIC GROUP. 



63 



I Dark bine and greyish 



Kimmeridge, Dor- 

 . set. Near Oxford. 



Kimmmeridge Cky. i ^animated clay, with ! g^^^^ ^^^ Hartwell, 

 gypsum and bitnnu- y, v. 

 nous shale. J , 



Near Swin- 



Upper Calcareous 

 Grit. 

 Coral Rag. 

 Lower Calcareous 



Coarse, shelly lime- 

 stones ; more or less 

 thick - bedded : coarse 

 oolitic limestone, sandy 

 limestones, abounding 

 in corals. Calcareo- 

 siliceons axits. 



Headington, Oxon. 

 Westbrook, Calne 

 and Steeple Ashton, 

 ^ilts. Malton and 

 Scarboro', Yorkshire. 



Oxford Clay. 

 Kelloway Rock. 



Dark blue clay, with 

 Sepfaria ; sometimes 

 slaty and bituminous ; 

 with a subordinate band 

 of ferruginous sandy 

 limestone, (Kel. Rock.) 



Chippenham 

 and TVootton Basset, 

 "Wilts; Oxford; York- 

 shire, &c. 



Combrash. 



(Coarse rubbly lime- "j 

 stone, thinly laminated, > 

 with layers of clay. J 



Stanton, Malms- 

 bury, Ashford, "Wilts. 



Forest Marble. 



f Thinly laminated -i Corsham, Box, &c., 

 I shelly limestone, sand I "Wilts. Sapperton. 

 I and gritstone, with j Bradford. Cirences- 

 layers of clav. ter. 



{Layers of Clay ; some- -j Bradford Bur- 

 times alternating with > field. PickwicL Tet- 

 bands of limestone. J buiy. 



Great Oolite. 



Oolitic, shelly lime- Bath. Bradford. 

 j stone,moreorlesscom- ilinehinhampton, 

 "j pact, and sandy, some- [common, (very fossil- 

 L times thick-bedded. J iferous.) 

 e2 



